atural fresh water resources; desertification;
wildlife poaching; land degradation has led to few conservation areas

Nauru
limited natural fresh water resources, roof storage tanks
collect rainwater, but mostly dependent on a single, aging
desalination plant; intensive phosphate mining during the past 90
years - mainly by a UK, Australia, and NZ consortium - has left the
central 90% of Nauru a wasteland and threatens limited remaining
land resources

Navassa Island
NA

Nepal
deforestation (overuse of wood for fuel and lack of
alternatives); contaminated water (with human and animal wastes,
agricultural runoff, and industrial effluents); wildlife
conservation; vehicular emissions

Netherlands
water pollution in the form of heavy metals, organic
compounds, and nutrients such as nitrates and phosphates; air
pollution from vehicles and refining activities; acid rain

Netherlands Antilles
NA

New Caledonia
erosion caused by mining exploitation and forest fires

New Zealand
deforestation; soil erosion; native flora and fauna
hard-hit by invasive species

Nicaragua
deforestation; soil erosion; water pollution

Niger
overgrazing; soil erosion; deforestation; desertification;
wildlife populations (such as elephant, hippopotamus, giraffe, and
lion) threatened because of poaching and habitat destruction

Nigeria
soil degradation; rapid deforestation; urban air and water
pollution; desertification; oil pollution - water, air, and soil;
has suffered serious damage from oil spills; loss of arable land;
rapid urbanization

Niue
increasing attention to conservationist practices to counter
loss of soil fertility from traditional slash and burn agriculture

Norfolk Island
NA

Northern Mariana Islands
contamination of groundwater on Saipan may
contribute to disease; clean-up of landfill; protection of
endangered species conflicts with development

Norway
water pollution; acid rain damaging forests and adversely
affecting lakes, threatening fish stocks; air pollution from vehicle
emissions

Oman
rising soil salinity; beach pollution from oil spills; limited
natural fresh water resources

Pacific Ocean
endangered marine species include the dugong, sea
lion, sea otter, seals, turtles, and whales; oil pollution in
Philippine Sea and South China Sea

Pakistan
water pollution from raw sewage, industrial wastes, and
agri